diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_state_fb.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_state_fb.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_state_fb.c b/src/gallium/drivers/nvfx/nvfx_state_fb.c new file mode 100644 index 00000000000..dd64ba4193c --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_state_fb.c @@ -0,0 +1,234 @@ +#include "nvfx_context.h" +#include "nouveau/nouveau_util.h" + +static struct pipe_buffer * +nvfx_do_surface_buffer(struct pipe_surface *surface) +{ + struct nvfx_miptree *mt = (struct nvfx_miptree *)surface->texture; + return mt->buffer; +} + +#define nvfx_surface_buffer(ps) nouveau_bo(nvfx_do_surface_buffer(ps)) + +static boolean +nvfx_state_framebuffer_validate(struct nvfx_context *nvfx) +{ + struct pipe_framebuffer_state *fb = &nvfx->framebuffer; + struct nouveau_channel *chan = nvfx->screen->base.channel; + struct nouveau_grobj *eng3d = nvfx->screen->eng3d; + struct nv04_surface *rt[4], *zeta = NULL; + uint32_t rt_enable = 0, rt_format = 0; + int i, colour_format = 0, zeta_format = 0; + int depth_only = 0; + struct nouveau_stateobj *so = so_new(18, 24, 10); + unsigned rt_flags = NOUVEAU_BO_RDWR | NOUVEAU_BO_VRAM; + unsigned w = fb->width; + unsigned h = fb->height; + int colour_bits = 32, zeta_bits = 32; + + if(!nvfx->is_nv4x) + assert(fb->nr_cbufs <= 2); + else + assert(fb->nr_cbufs <= 4); + + for (i = 0; i < fb->nr_cbufs; i++) { + if (colour_format) { + assert(colour_format == fb->cbufs[i]->format); + } else { + colour_format = fb->cbufs[i]->format; + rt_enable |= (NV34TCL_RT_ENABLE_COLOR0 << i); + rt[i] = (struct nv04_surface *)fb->cbufs[i]; + } + } + + if (rt_enable & (NV34TCL_RT_ENABLE_COLOR1 | + NV40TCL_RT_ENABLE_COLOR2 | NV40TCL_RT_ENABLE_COLOR3)) + rt_enable |= NV34TCL_RT_ENABLE_MRT; + + if (fb->zsbuf) { + zeta_format = fb->zsbuf->format; + zeta = (struct nv04_surface *)fb->zsbuf; + } + + if (rt_enable & (NV34TCL_RT_ENABLE_COLOR0 | NV34TCL_RT_ENABLE_COLOR1 | + NV40TCL_RT_ENABLE_COLOR2 | NV40TCL_RT_ENABLE_COLOR3)) { + /* Render to at least a colour buffer */ + if (!(rt[0]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { + assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); + for (i = 1; i < fb->nr_cbufs; i++) + assert(!(rt[i]->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)); + + rt_format = NV34TCL_RT_FORMAT_TYPE_SWIZZLED | + (log2i(rt[0]->base.width) << NV34TCL_RT_FORMAT_LOG2_WIDTH_SHIFT) | + (log2i(rt[0]->base.height) << NV34TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT); + } + else + rt_format = NV34TCL_RT_FORMAT_TYPE_LINEAR; + } else if (fb->zsbuf) { + depth_only = 1; + + /* Render to depth buffer only */ + if (!(zeta->base.texture->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) { + assert(!(fb->width & (fb->width - 1)) && !(fb->height & (fb->height - 1))); + + rt_format = NV34TCL_RT_FORMAT_TYPE_SWIZZLED | + (log2i(zeta->base.width) << NV34TCL_RT_FORMAT_LOG2_WIDTH_SHIFT) | + (log2i(zeta->base.height) << NV34TCL_RT_FORMAT_LOG2_HEIGHT_SHIFT); + } + else + rt_format = NV34TCL_RT_FORMAT_TYPE_LINEAR; + } else { + return FALSE; + } + + switch (colour_format) { + case PIPE_FORMAT_B8G8R8X8_UNORM: + rt_format |= NV34TCL_RT_FORMAT_COLOR_X8R8G8B8; + break; + case PIPE_FORMAT_B8G8R8A8_UNORM: + case 0: + rt_format |= NV34TCL_RT_FORMAT_COLOR_A8R8G8B8; + break; + case PIPE_FORMAT_B5G6R5_UNORM: + rt_format |= NV34TCL_RT_FORMAT_COLOR_R5G6B5; + colour_bits = 16; + break; + default: + assert(0); + } + + switch (zeta_format) { + case PIPE_FORMAT_Z16_UNORM: + rt_format |= NV34TCL_RT_FORMAT_ZETA_Z16; + zeta_bits = 16; + break; + case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + case 0: + rt_format |= NV34TCL_RT_FORMAT_ZETA_Z24S8; + break; + default: + assert(0); + } + + if ((!nvfx->is_nv4x) && colour_bits > zeta_bits) { + /* TODO: does this limitation really exist? + TODO: can it be worked around somehow? */ + return FALSE; + } + + if ((rt_enable & NV34TCL_RT_ENABLE_COLOR0) + || ((!nvfx->is_nv4x) && depth_only)) { + struct nv04_surface *rt0 = (depth_only ? zeta : rt[0]); + uint32_t pitch = rt0->pitch; + + if(!nvfx->is_nv4x) + { + if (zeta) { + pitch |= (zeta->pitch << 16); + } else { + pitch |= (pitch << 16); + } + } + + so_method(so, eng3d, NV34TCL_DMA_COLOR0, 1); + so_reloc (so, nvfx_surface_buffer(&rt0->base), 0, + rt_flags | NOUVEAU_BO_OR, + chan->vram->handle, chan->gart->handle); + so_method(so, eng3d, NV34TCL_COLOR0_PITCH, 2); + so_data (so, pitch); + so_reloc (so, nvfx_surface_buffer(&rt[0]->base), + rt0->base.offset, rt_flags | NOUVEAU_BO_LOW, + 0, 0); + } + + if (rt_enable & NV34TCL_RT_ENABLE_COLOR1) { + so_method(so, eng3d, NV34TCL_DMA_COLOR1, 1); + so_reloc (so, nvfx_surface_buffer(&rt[1]->base), 0, + rt_flags | NOUVEAU_BO_OR, + chan->vram->handle, chan->gart->handle); + so_method(so, eng3d, NV34TCL_COLOR1_OFFSET, 2); + so_reloc (so, nvfx_surface_buffer(&rt[1]->base), + rt[1]->base.offset, rt_flags | NOUVEAU_BO_LOW, + 0, 0); + so_data (so, rt[1]->pitch); + } + + if(nvfx->is_nv4x) + { + if (rt_enable & NV40TCL_RT_ENABLE_COLOR2) { + so_method(so, eng3d, NV40TCL_DMA_COLOR2, 1); + so_reloc (so, nvfx_surface_buffer(&rt[2]->base), 0, + rt_flags | NOUVEAU_BO_OR, + chan->vram->handle, chan->gart->handle); + so_method(so, eng3d, NV40TCL_COLOR2_OFFSET, 1); + so_reloc (so, nvfx_surface_buffer(&rt[2]->base), + rt[2]->base.offset, rt_flags | NOUVEAU_BO_LOW, + 0, 0); + so_method(so, eng3d, NV40TCL_COLOR2_PITCH, 1); + so_data (so, rt[2]->pitch); + } + + if (rt_enable & NV40TCL_RT_ENABLE_COLOR3) { + so_method(so, eng3d, NV40TCL_DMA_COLOR3, 1); + so_reloc (so, nvfx_surface_buffer(&rt[3]->base), 0, + rt_flags | NOUVEAU_BO_OR, + chan->vram->handle, chan->gart->handle); + so_method(so, eng3d, NV40TCL_COLOR3_OFFSET, 1); + so_reloc (so, nvfx_surface_buffer(&rt[3]->base), + rt[3]->base.offset, rt_flags | NOUVEAU_BO_LOW, + 0, 0); + so_method(so, eng3d, NV40TCL_COLOR3_PITCH, 1); + so_data (so, rt[3]->pitch); + } + } + + if (zeta_format) { + so_method(so, eng3d, NV34TCL_DMA_ZETA, 1); + so_reloc (so, nvfx_surface_buffer(&zeta->base), 0, + rt_flags | NOUVEAU_BO_OR, + chan->vram->handle, chan->gart->handle); + so_method(so, eng3d, NV34TCL_ZETA_OFFSET, 1); + /* TODO: reverse engineer LMA */ + so_reloc (so, nvfx_surface_buffer(&zeta->base), + zeta->base.offset, rt_flags | NOUVEAU_BO_LOW, 0, 0); + if(nvfx->is_nv4x) { + so_method(so, eng3d, NV40TCL_ZETA_PITCH, 1); + so_data (so, zeta->pitch); + } + } + + so_method(so, eng3d, NV34TCL_RT_ENABLE, 1); + so_data (so, rt_enable); + so_method(so, eng3d, NV34TCL_RT_HORIZ, 3); + so_data (so, (w << 16) | 0); + so_data (so, (h << 16) | 0); + so_data (so, rt_format); + so_method(so, eng3d, NV34TCL_VIEWPORT_HORIZ, 2); + so_data (so, (w << 16) | 0); + so_data (so, (h << 16) | 0); + so_method(so, eng3d, NV34TCL_VIEWPORT_CLIP_HORIZ(0), 2); + so_data (so, ((w - 1) << 16) | 0); + so_data (so, ((h - 1) << 16) | 0); + so_method(so, eng3d, 0x1d88, 1); + so_data (so, (1 << 12) | h); + + if(!nvfx->is_nv4x) { + /* Wonder why this is needed, context should all be set to zero on init */ + /* TODO: we can most likely remove this, after putting it in context init */ + so_method(so, eng3d, NV34TCL_VIEWPORT_TX_ORIGIN, 1); + so_data (so, 0); + } + + so_ref(so, &nvfx->state.hw[NVFX_STATE_FB]); + so_ref(NULL, &so); + return TRUE; +} + +struct nvfx_state_entry nvfx_state_framebuffer = { + .validate = nvfx_state_framebuffer_validate, + .dirty = { + .pipe = NVFX_NEW_FB, + .hw = NVFX_STATE_FB + } +}; |